Padlock



Dec. 8 .1925. l '1,564,462 F. E. BEST PADLO CK Filed Dec. 6, 1925 /NVENTU Patented Dec. 8, 1925.

FRANK .ELLISON BEST, GF SEATTLE, VASHNGTUN, ASSIGNOR TO FRANK E. BEST INC., OF SEATTLE, 'vW-SEIINGTON, A CPEBATION WASI-INGTON.

retailer PADLOCK.

Application filed December 6, 1923. Serial No. 678,999.

To all 107.10111, may concern.'

Be it known that l, FRANK ErmrsoN Buer, a citizen of thellnitcd States, residing at Seattle, in the county ot King and State of Washington, have invented a new and useful Padlock, of which the. following is a specification.

My invention relates to improvements in padlocks and is in the nature of an improvement on the padlock shown and described in my Patent No. 1,479,214 issued January 1, 1924.

An object of my invention is `to improve and simplify the construction of padlocks of this nature and to render the same more secure and more reliable and eliicient in operation.

A. more specific object is to provide a padlock having atl-shaped vshackle whose longer leg is slidably and rotatably supported within the body of the lock in such amanner as to afford a bearing of maximum length the bottom end of said longer shackle leg being bored for the `reception of a compression spring that urges the shackle outwardly.

Other and more specific objects will be apparent from the following description taken in connection with the accompanying drawings.

In the drawings Figure 1 is a view in longitudinal section substantially on broken line 1-1 of Fig. 3 of a padlock constructed in accordance with my invention showingcertain parts in elevation and showing the shackle in an unlocked position.

Fig. 2 is a similar view substantially on broken line 2-2 of Fig. 4` showing the shackle in a locked position.

Fig. 3 is a view in cross section substantially on a broken line 3 3 of Fig. 1.

Figs. 4 and 5 are views in cross section respectively substantially on broken lines 4 4 and 5 5 of Fig. 2.

Fig. 6 is a detached view in perspective of a locking tumbler embodied in the invention.

Referring to the drawings, throughout which like reference numerals designate like parts, I show a padlock embodying a housing 7 of one piece construction having an integral top end 8 and recessed, as shown, by boring from the bottom ond upwardly, three intersecting tubular bores 9, 10, and 11, said bores leaving inwardly projecting ridges 12 Yon the inner wallsof the housing.

The top wall 8 of the housing is provided with two perforations 18 and 14 through which the two legs 15 and 16 of a shackle 17 are arranged to be inserted. 'lhe longer shackle leg 15 is adapted to lit within a bore 18 in a plug 19 that is arranged to be inserted from the. bottom of the housing 7 into the recess 9 at one sidel thereof. rlhe plug 19 is provided with a slot 2O extending from thc top downwardly crosswise of the bore 18 and the longer shackle leg 15 is provided with a cross pin 21 movable in said slot, a counterbore being provided at the top of the bore 18 to permit the cross pin 21 to turn entirely around. The cross pin 21 limits .the outward movement of the shackle 17, prevents turning of sai-d shackle except when it is in its outermost position and prevents shackle 17 from being moved inwardly from the unlocked position except when it is properly aligned so that the shorter leg 16 of the same will enter the perforation 14.

After the plug 19 is inserted it may be permanently secured in the housing by rivet ing or clinching the metal of the. housing over the bottom edges of the plug.

rlhe longer shackle leg 15 is adapted to extend substantially to the bottom of the plug 19 thereby affording within said plug a bearing of maxi num length and the bottom end of said shackle legl 15 is bored to forni a recess 23 for receiving a compression spring 24 that eX- erts an upward vpressure on the shackle leg. The lower end of the recess 23 in the shackle leg is iared as at 25 to preclude any possibility of pinching coils of the spring 24 between the-bottoni end of the shackle leg and the bottom of the bore 18 in the plug` 19. The bore 18 in the plug 19 extends, as nearly as possible, to the bottom of said plug and the positioning of the spring 24 in the recess 23 in the bottom of the shackle leg 15 makes it possible to secure a bearing of maximum length of the shackle leg 15 in the plug 19 so that the shackle will be se.- curely supported and will have no play even when in the unlocked position.

The shackle 17 is arranged to be locked in the housing 7 by a locking tumbler, Fig. 6, embodying a disc 26 having oppositely disposed locking members 27 arranged to lock .into notches 28 and 29 in the shackle legs 15 and 16 respectively. The disc 26 is provided with centrally arranged bearing tumbler into lockeld position. The partition member 32 is provided with upwardly protrudirg end portions 36 that bear against the top 8 of the housing and said partition forms a compartment in which the locking tumbler operates.

TheA locking tumbler is arranged to be moved into an unlocked position by pin tumbler locking` devices embodying a lock core 37 shaped to lit the housing 7 and arranged to be removably locked therein by a locking gate 33 adapted to lock inte a groove 39 provided in one of the inwardly projecting ridges 12 in the interior of the housing, the movement of the gate 38 and removal of the core 37 from the housing` being coatrolled by a second or upper shear line in the lock in a manner similar to that described in my Patent Number 1,334,022 issued July 5, 1921.

The lock core 37 is provided with a keyplug 40 having on its inner end a disc 41 provided at points removed from the center with two pins 42 that extend through the slots in the partition member 32 and engage within the slots 33 and 34 in the locking tumbler. The slots 33 and 34 in the locking tumbler are long enough and are positioned so as to leave sufficient clearance for the pins 42 to be rotated through an angle of substantially fifteen degrees to the left from the position shown in Fig. 1 for the purpose ol unlocking the core 37 from the housing 7 without moving the locking tumbler. 1When the lock is operated to unlock the locking tumbler from th shackle 17 the pins 42 are first moved idly to the lett far enough to engage the ends of the slots 33 and 34 and are then moved 'further to turn the locking tumbler into the unlocked position shown in Fig. 3. As soon as the locking tumbler releases the shackle the spring 24 will snap the shackle outwardly into the position shown in Fig. 1 in which position the locking member 27 on one end of the locking tumbler will engage with the longer leg 15 of the shackle 17 and be held in an unlocked position (see Fig. 3) thus permitting the pins 42 to be moved in the slots 33 and 34 back into the position shown in 3 so that the tumbler pins 43 in the lock core 37 will be properly aligned and the key 44 with which the lock is operated may be withdrawn.

From the preceding descripton it will be seen that the slots 33 and 34 in the disc portion 26 of the locking tumbler function to permit the removal of the lock core 37 without turning the locking tumbler and to permit the reverse turning movement of the key plug necessary in order to remove the key.

The lock core 37 preferably has a face plate 45 rigidly secured thereto and arranged to fit within a suitably counterbored portion 46 in the end ot the lock housing.

In operation when the key 44 is inserted and the locking tumbler turned into the unlocked position, Fig, 3, the spring 24 will snap the shackle outwardly so that the shorter leg 16 of the same will clear the top of the padlock and said shackle may be turned sidewise and disengaged Jfrom any member to which it may be secured.

litter the locking tumbler is unlocked the key 44 may be removed. rlhe padlock may be again locked at any time by pushing the shackle 17 downwardly into the housing` 7 until the notches 28 and 29 register with the locking member 27 and the spring 35 snaps such locking members 27 back into locked position.

The padlock is neat in appearance, compact in construction and makes possible the use of a pin tumbler lock core having -a maximum number of tumbler barrels in :i padlock of standard size.

The foregoing description and accompanying drawings clearly disclose one preferred embodimentof my invention but it will be understood that this disclosure is merely illustrative and that numerous changes may he made within the scope and spirit of the following claims:

I claim:

1. A padlock embodying a hollow housing having a closed top end and an open bottom end, a partition member disposed adjuA cent said top end and cooperating therewith to form a narrow chamber tor the reception of latch mechanism. a plug member arranged to lit within said housing and to extend from the bottom end thereo'lt to said partition, said plug having a bore extending downwardly to a point 'near its bottom enfl, a ll-shaped shackle having` its longer leg arranged to fit slidably within the bore in said slug said shackle leghaving` a bearing tha! extends throughout substantially the entire length of said plug and a spring urging said shackle outwardly.

2. A padlock embodying a hollow housing, open at one and and closed at the othern a partition member adjiacent said closed end to form a latch receiving chamber. a plug` insertable trom the open end ot the housing and extending from said partition member to the open end ot said housing.` said plug." having a bore extending from the end adiacent said partition substantially to the other end, a J-shaped shackle having a longer leg bored from the bottom upwardly and arranged to lit slidably within the bore in said plug and having therein a bearing of maximum length, a spring in the end of said longer leg urging said shackle upwardly and means on said longer shackle leg for engaging said partit-ion member to limit the upward movement oit said shackle.

3. A padlock embodying a housing, a plug member arranged to lit within lsaid housing, said plug member having a bore that extends from the top downwardly and having a slot extending trom the top downwardly crosswise of said bore and having a counterbore at the top of said bore, a J-shaped shackle having its longer end rotatably and slidably disposed in said bore and a pin in said shackle movable in the slot and rotatable in the counterbore in said plug.

4. A. padlock embodying a housing, a J- shaped shackle having one leg rotatably and slidably supported in said housing said shackle having oppositely disposed tumbler receiving notches, a pivotally mounted tumbler arranged to engage within said notches to lock said shackle said tumbler having slots provided therein, a key operated pin tumbler lock, and means on the end oi said lock 'for engaging within said slots to move said tumbler into unlocked position, said slots permitting reverse turning movement of: said lock when said tumbler is in an unlocked position whereby the key may be withdrawn from said lock.

5. In a padlock a housing, a Jshaped shackle having two legs supported in said housing and provided with tumbler receiving notches, a tumbler rotatably mounted and having oppositely protruding members arranged to enter the notches in said shackle said tumbler also having' slots, a key operated pin tumbler lock having a key plug provided on the end with eccentric pin means arranged to enter the slots in said tumbler for operating' the same, said slots adording suliicieut clearance for said eccentric pin 'means to permit withdrawal of a key from said lock when said tumbler is in unlocked position.

6. A padlock embodying a housing of one piece construction having an integral top end and an open bottom end and having an internal cavity formed by boring three inter secting holes that leave inwardly protruding segments therebetween a tubular plug member arranged to be inserted into one of said holes, a J-shaped shackle having a longer end arranged to lit slidably within said tu-` bular plug and affording a bearing of maximum length therein, the bottom end of saidy shackle leg having a tubular recess, a compression spring disposed within said tubular recess and locking means in said housing for locking said shackle.

7. A padlock embodying a housing of one piece construction having an internal cavity leaving an open bottom end and a closed top endv` a partition member arranged to be inserted in said housing said partition member having two oppositely disposed slots and having upwardly extending portions that abut against the end of said housing, a J- shaped shackle having oppositely arranged tumbler receiving notches and having its longer leg rotatably and slidably supported in said housing, a locking tumbler mounted ior oscillation between said partition and the end of said housing and having slots that register with the slots in said partition, oppositely disposed locking members on said tumbler arranged to lock within the notches in. said shackle, a pin tumbler lock arranged to be inserted in said housing and means on the end of said lock arranged to project through said slots and operate said locking tumbler.

8. A `padlock embodying a housing of one piece construction having' an integral top end and an open bottom end and having an internal cavity formed by boring three intersecting' holes that leave inwardly protruding segments therebetween, a partition member arranged to be inserted in said housing said partition member having two oppou sitely disposed slots and having upwardly extending portions that abut against the end of said housing, a tumbler member mounted for oscillation between the end of said housing and said partition said tumbler member having oppositely disposed locking elements and having slots, a plug member arranged to be inserted into one of the holes at one side of' said housing said plug member having a tubular bore extending' to a point near the bottom end thereof, a J-shaped shackle having a longer and a shorter leg each provided wit-h a tumbler receiving notch, the longer leg fitting snugly within the bore in said plug member and affording a bearing oi" maximum length therein and said longer shackle leg` having a tubular bottom end, a compression spring disposed in said tubular bottom end, a lock core of substantially tign ure eight cross sectional shape disposed in said housing, a key operated disc rotatable on the end of' said lock core, two pinsV on said disc at points removed from the center and arranged to extend through the slots in said partition and in said tumbler for turning said tumbler to release said shackle and a spring urging said tumbler into a locked position.

FRANK ELLISON BEST. 

